Cloud and Precipitation During GoAmazon: The Influence of Aerosol, Surface and Thermodynamics
Authors
Luiz Augusto Toledo Machado — INPE-CPTEC
Micael Amore Cecchini — Colorado State University
Thiago Souza Biscaro — National Institute for Space Research (INPE)
Jennifer M. Comstock — Pacific Northwest National Laboratory
Fan Mei — Pacific Northwest National Laboratory
Courtney Schumacher — Texas A&M University
Scott Giangrande — Brookhaven National Laboratory
Paulo Artaxo — University of Sao Paulo
Category
GoAmazon – Clouds and aerosols in Amazonia
Description
The Green Ocean Amazon, GOAmazon, intensive field campaign, during February-March (IOP1) and September – October (IOP2) 2014, was an opportunity for a broad and joint campaigns of CHUVA, IARA and ACRIDICON-CHUVA projects. The data collected by CHUVA campaign complemented the atmospheric data to improve description of cloud processes during the wet and dry seasons. The SIPAM S band radar, the X Band dual polarization radar, disdrometers, radiosondes, surface fluxes, microwave radiometer, micro rain radar, are some of the additional measurements collected by CHUVA during the two IOPs. This study explore the use of these data as well those collected by ARM Mobile Facility and G1 to describe the impact of aerosol concentration, surface type and thermodynamic properties on cloud and precipitation. Cloud and precipitation characteristics, for each IOP, was also explored from the space-time organization point of view. The microphysical properties was evaluated using disdrometers and the data collected by G1. The impact of Manaus plume, vegetation type, wet – dry season and orography showed specific characteristics on cloud properties. The knowledge of the cloud sensitivity to surface type, orography, season and CCN concentration is very important to evaluate convective and microphysical parameterizations and understand the potential mechanisms related to climate change
